Hartz UltraGuard Pro Flea & Tick Collar for Cats, slide 1 of 1

Hartz UltraGuard Pro Flea & Tick Collar for Cats, 1 Collar (7-mos. supply)

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Help protect your furry friend from pesky pests with Hartz UltraGuard Pro Reflect-X Flea & Tick Cat Collar! Every purchase comes with one collar that kills and repels fleas and ticks on cats 12 weeks of age and older. The collar lasts for up to 7 months and can also help to prevent flea eggs from hatching, ultimately stopping the flea life cycle, while also helping to stop reinfestation. And you don’t have to worry about the collar getting wet because it is completely water-resistant. This breakaway collar also has a reflective strip that reflects direct light for up to 450 feet to keep her visible in low lighting!

Key Benefits
  • Repels and kills fleas, ticks, flea eggs and flea larvae and helps prevent flea eggs from hatching for up to 7 months!
  • The reflective strip reflects direct light up to 450 feet to help keep your paw-tner visible.
  • Water-resistant, so you don’t have to worry about your outdoor cat getting caught in a sudden rain shower.
  • Has a breakaway, safety release snap that makes the collar come undone in case your kitty accidently gets caught on a branch or other object.
  • For cats 12 weeks of age and older.

Consult a veterinarian before using this product on debilitated, aged or medicated pets. Sensitivity may occur after using any pesticide product for pets. Some animals may become irritated by the collar if it is applied too tightly. If this occurs, loosen the collar. If irritation continues, remove the collar and bathe your cat with mild soap and rinse with large amount of water. If signs continue, consult a veterinarian immediately. Do not use this product on cats simultaneously or within 30 days before or after treatment of other flea and tick products. However, flea and tick collars may be replaced immediately.

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  • Item Number
  • Usage
  • Lifestage
  • Collar Type
    Flea & Tick
  • Features
  • Product Form
  • Health Condition
    Fleas, Ticks

Remove collar from package, unroll and stretch to activate insecticide generator. Do not use on kittens under 12 weeks of age.

About Hartz UltraGuard Collars for Cats

Hartz Commitment to You and Your Pets

Hartz Commitment to You and Your Pets

Hartz treasures the bond between you and your pet, and they're committed to providing you with products designed to protect and rid your pets of fleas and ticks year-round. Make your pet one of the 5 million furry family members Hartz helps keep pest-free and happy every year! 

UltraGuard Collars for Cats

Fleas and ticks aren’t just an annoyance for your cat, they can also transmit diseases that jeopardize the health and well-being of your furry friend. Hartz UltraGuard Flea and Tick Cat Collars provide active, full body flea and tick control for your kitties, to protect against biting pests and help prevent problems before they can take hold.

UltraGuard Collars for Cats

Affordable Protection that Performs

Hartz UltraGuard Collars provide head-to-tail protection from fleas and ticks for up to 7 months. They’re easy to put on and have a water-resistant design that stays effective even after rain showers and baths.


One collar provides full body protection for up to 7 months, protecting through warm weather and cool seasons when fleas can surprise you.


Active ingredients in the collar release slowly over your cat’s entire body surface, providing continuous coverage for 7 months.


Lasting protection is as easy as fastening a collar, and this non-greasy collar can be worn with a regular collar, too.


A run through a puddle or a bath won’t diminish the effectiveness of this collar. It’s water resistant, to go wherever your cat wants to go.

Choose the Collar That’s Right for You





















About Hartz

Hartz has been delivering exceptional consumer pet care products for over 90 years. Their goal is to provide innovative, trustworthy and affordable products that strengthen the bond between pets and people, and to offer the knowledge and support people need to better care for their pets. Their mission is a world where every pet can lead a healthy, happy and long life in a loving home.

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About Hartz

Rating: 2.3 of 5 stars 6 Reviews 6 Reviews 2.3 out of 5 Stars

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Rating: 2.3 of 5 stars 2.3 / 5

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6 Reviews

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  • 1 out of 5 stars

    flea collars

    By doogie on Nov 3, 2021

    Ordered these for my 5 cats. Total and complete waste of money. They didn't work at all, utterly useless. Company that makes these should be held accountable and money should be refunded. Only reason I gave one star is because I had to put something for this to post.

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  • 1 out of 5 stars

    Cat flea collars

    By Litter on Apr 14, 2020

    Does not work. Waste of money. Would not buy this product ever again. I do not recommend buying this at all. My cats still have fleas with this collar on and now I need to find a different product that works that isn’t so expensive are find something homemade that works.

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  • 5 out of 5 stars


    By Catlady on Apr 14, 2020

    Chewy had the best service always but more so during pandemic, got updates on my order and still received in a reasonable amount of time. If I could give them 10 stars+ I would.

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  • 1 out of 5 stars

    no luck ...no good

    By GrammyJ on Apr 24, 2020

    After a week of being on my cats I am still finding fleas climbing right by it on their heads ... hoping for better results by the description :(

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  • 1 out of 5 stars

    Doesn't get rid of fleas

    By Yummy on Apr 5, 2020

    Brought six Hartz UltraGuard Pro Flea & Tick Cat Collars. All cats still have fleas, had to give our cats a spot on flea treatment

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  • 5 out of 5 stars

    Service under stress

    By RonW on Mar 30, 2020

    Service is very good even under this pandemic. We are older and Chewy makes it so convenient to feed our neighborhood stray cats

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